Author Question: Why does neutron capture work? A) Neutrons have no repulsive barrier to overcome in combining ... (Read 127 times)

chads108

  • Hero Member
  • *****
  • Posts: 507
Why does neutron capture work?
 
  A) Neutrons have no repulsive barrier to overcome in combining with positively charged nuclei.
  B) Neutrinos, because of their low mass and high speed, easily penetrate nuclei.
  C) Single protons have little repulsion to heavy nuclei and easily fuse with them.
  D) Photodisintegration makes many alpha particles, available for capture by nuclei.
  E) Neutronization captures all the protons and electrons.

Question 2

The most accurate Greek attempt to explain planetary motion was the model of:
 
  A) Aristotle.
  B) Pythagoras.
  C) Hipparchus.
  D) Ptolemy.
  E) Erastothenes.



kjohnson

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

For a complete list of videos, visit our video library